Attacking TH10 island bases.

Best way to attack these with isolated IT's?

Maxed th10 offense

Easy. Queen walk on one side, golem (if king isn't maxed) on the other with king and wiz behind. Valks in the middle with jump to go straight to the core. Base will be turned to dust!
If your queen isn't high enough to use queen wall then just use a golem on that side as well. Good luck!

Both heroes 40. Just concerned with both IT's in their own wall segment. Valks will get for sure get TH though.

I've had alot of success with Lava Loon against these island bases. I think its because the defenses are in separate compartments and the pathing is obvious.

Air, Very vulnerable to air

The main weakness of these bases is that when 50% of the outer ring has gone any well placed drags will go for the core.
Just watch for high level heroes, especially BK as they will retatget him and do a merrygoround his altar following him. Make sure he's on the far aside of the base or you've killed him already.